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RISS 인기검색어
- 검색키워드
- 저자 : Qingzhu Zhang (검색결과 4 건)
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Co-saliency Detection Based on Superpixel Matching and Cellular Automata
( Zhaofeng Zhang ),( Zemin Wu ),( Qingzhu Jiang ),( Lin Du ),( Lei Hu ) 한국인터넷정보학회 2017 KSII Transactions on Internet and Information Syst Vol.11 No.5
Co-saliency detection is a task of detecting same or similar objects in multi-scene, and has been an important preprocessing step for multi-scene image processing. However existing methods lack efficiency to match similar areas from different images. In addition, they are confined to single image detection without a unified framework to calculate co-saliency. In this paper, we propose a novel model called Superpixel Matching- Cellular Automata (SMCA). We use Hausdorff distance adjacent superpixel sets instead of single superpixel since the feature matching accuracy of single superpixel is poor. We further introduce Cellular Automata to exploit the intrinsic relevance of similar regions through interactions with neighbors in multi-scene. Extensive evaluations show that the SMCA model achieves leading performance compared to state-of-the-art methods on both efficiency and accuracy.
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Flexible Composite Materials – Between Inorganic Fibers and Organic Polymers
Guangchao Sun,Qingzhu Liu,Kaikai Si,Jiayu Zhang,Rui Xiong,Kaiqi Liu,Yunfa Chen 한국섬유공학회 2020 Fibers and polymers Vol.21 No.3
In order to develop a flexible composite material that could play a good cushion role for high temperature ceramicmembrane cleaning, we herein report a flexible composite material which could achieve effective buffering to relieve thestress generated by rigid contact and play a certain sealing effect. The coating method is applied to fabricate the compositematerial, which can be produced by multi-layer superposition using high silica fiber fabric and waterborne polyurethane. Theresults show that waterborne polyurethane (WPU) as a binder coating plays a key role in improving the strength by six timescompared to raw materials and maintaining the elasticity of materials. Meanwhile, the thermal degradation mechanism of thecomposites calcined at different temperatures (700-1200 oC) in air atmosphere is investigated. The as-made compositematerials still have good flexibility, and the tensile strength is about 2.4 MPa after calcination at 1000 oC for 80 h. Thisprovides a method to prepare flexible cushion composite materials for ceramic membrane filtration.
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Zhanghui Dong,Jianhong Zhang,Qingzhu Zhu,Lifen Zhao,Shuxiang Sui,Zengshu Li,Yanli Zhang,Hu Wang,Dongliang Tian,Yankun Zhao 한국유전학회 2018 Genes & Genomics Vol.40 No.3
Drought stress is one of the most important abiotic stresses. Cotton is classified as drought tolerant crop but the regulatory mechanism is unknown. MicroRNAs (miRNAs) have been implicated important roles in stress responses in many plants. However, the study of miRNAs in cotton responsive to drought stress is limited, especially in early-maturing cotton. In this study, we performed deep sequencing of small RNAs to identify known and novel miRNAs involved in the regulation of drought stress and understand the expression profile of miRNAs in early-maturing cotton. Three cotton small RNA libraries: non-stressed Shizao1 (early-maturing cotton variety) library (NSS), drought-stressed Shizao1 library (DSS) and non-stressed Jimian958 (medium-maturing cotton variety) library (NSJ) were constructed for deep sequencing. As a result, we identified a total of 64 known and 67 novel miRNAs in the 3 libraries and 88 of them were dramatically differentially expressed (greater than twofold) during drought stress. In addition, we found the expression of 41 miRNAs increased or reduced more than twofold in early-maturing cotton variety compared with that in medium-maturing cotton variety. Our results significantly increased the number of miRNAs in cotton and revealed for the first time the expression profile of miRNAs for early-maturing cotton.
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DNA methylation involved in environmental adaptation of birch
Jiang Wang,Bowei Chen,Xu Zhang,Yu Wang,Yuhua Li,Qingzhu Zhang 강원대학교 산림과학연구소 2019 강원대학교 산림과학연구소 학술대회 Vol.2019 No.09
The boreal forest, with large tracts of unmanaged forests and low human impacts, is critical for the stability of global ecosystems. However, the boreal regions are subject to extensive ecosystem shifting, thinning and even loss under the climate changes and human activities, especially with the increasing of global warming. How to cope with the trend is extremely urgent. To illustrate responds of future populations of forest trees to climate change, it is essential to uncover past and present signatures of molecular adaptation in their genomes. Ecological epigenetics, as an interdisciplinary mainly answering how species, especially perennial, adapt to environmental changes epigenetically, is an important approach to detect the epigenetic mechanisms of boreal forest plants adapting to climate changes. Here, we will report the recent results about DNA methylation involved in environmental adaptation of birch, the pioneered trees of boreal forest.
ScienceON
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